// Copyright (c) .NET Foundation. All rights reserved.
// Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.

using System.Linq.Expressions;
using JetBrains.Annotations;
using Microsoft.EntityFrameworkCore.Cosmos.Query.Internal;

#nullable enable

// ReSharper disable once CheckNamespace
namespace Microsoft.EntityFrameworkCore.Internal
{
    /// <summary>
    ///     This is an internal API that supports the Entity Framework Core infrastructure and not subject to
    ///     the same compatibility standards as public APIs. It may be changed or removed without notice in
    ///     any release. You should only use it directly in your code with extreme caution and knowing that
    ///     doing so can result in application failures when updating to a new Entity Framework Core release.
    /// </summary>
    public static class CosmosExpressionExtensions
    {
        /// <summary>
        ///     This is an internal API that supports the Entity Framework Core infrastructure and not subject to
        ///     the same compatibility standards as public APIs. It may be changed or removed without notice in
        ///     any release. You should only use it directly in your code with extreme caution and knowing that
        ///     doing so can result in application failures when updating to a new Entity Framework Core release.
        /// </summary>
        public static bool IsLogicalNot([NotNull] this SqlUnaryExpression sqlUnaryExpression)
            => sqlUnaryExpression.OperatorType == ExpressionType.Not
                && (sqlUnaryExpression.Type == typeof(bool)
                    || sqlUnaryExpression.Type == typeof(bool?));
    }
}
